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  1. #1
    Elite Member
    Join Date
    Mar 2006
    Posts
    3,059
    Location
    Wisconsin
    Tractor
    2003 NH TN70A

    Default Chnage oil, leave filter unchanged

    Okay, with the cold weather coming, I am going to drain out my Rotella 15-40 DINO oil (100 hours of run time) and replace it with Rotella SYN 0-40W. 2 gallons required. Since my New Holland TN70 owners manual states I need to change oil and filter every 300 hours, I am going to leave the filter untouched since I have less than 300 hours on it. New oil and old filter (100 hours on filter).

    Am I making a mistake???
    Bob

  2. #2
    Silver Member NoMo's Avatar
    Join Date
    Sep 2004
    Posts
    238
    Location
    Talala, OK
    Tractor
    John Deere 3520

    Default Re: Chnage oil, leave filter unchanged

    Theoretically, the filter is where all the dirt & "stuff" is trapped. Why contaminate new oil with old junk? Is the filter that expensive?

  3. #3
    Gold Member
    Join Date
    May 2006
    Posts
    264
    Location
    NE TX
    Tractor
    Long LongTrac

    Default Re: Chnage oil, leave filter unchanged

    I'd go by the color of the oil. If dark change filter, otherwise leave it.
    You will probably change back in Spring before 300 hours is up anyway.

  4. #4
    Silver Member
    Join Date
    Nov 2005
    Posts
    162
    Location
    Upstate NY Warren County
    Tractor
    JD 3520

    Default Re: Chnage oil, leave filter unchanged

    Doc...big mistake IMO. Especially if you're switching to synthetic. The filter is where the bad stuff gets lodged so you really want to be changing that filter even though the manual states it's premature. With the amount you have invested in the tractor and the fact that you're willing to spend the extra $$ on synthetic, I think it would be in your best interest to start with a new filter.

    Jon
    Boots size 8, but 9's feel so good, I buy 10's!

  5. #5
    Veteran Member
    Join Date
    Jul 2005
    Posts
    1,664
    Location
    Southwest VA

    Default Re: Chnage oil, leave filter unchanged

    change the filter.

  6. #6
    Elite Member SkyPup's Avatar
    Join Date
    Dec 2003
    Posts
    3,005
    Location
    North Central, Florida
    Tractor
    Kubota L-39 GST TLB, Kubota L3130GST, Massey 1030 HST, Kubota ZD-21 ProDecK, Two Euro VW TDIs

    Default Re: Chnage oil, leave filter unchanged

    Change the filter.
    Suck, Squeeze, Bang, Blow......GO Diesel GO!

  7. #7
    Veteran Member Jay4200's Avatar
    Join Date
    Nov 2005
    Posts
    1,877
    Location
    Hudson/Weare, NH
    Tractor
    L4200GST w/ LA680 & BX2200D w/ LA211

    Default Re: Chnage oil, leave filter unchanged

    Quote Originally Posted by Doc_Bob
    Am I making a mistake???
    100 hours is a lot, regardless of what the manual says. Running oil for 300 hours is outrageous. If you were changing oil every 50 hours, maybe I'd say to change the filter every other time, but at 100, I'd definately do both.

    Jay

  8. #8
    Silver Member
    Join Date
    Mar 2004
    Posts
    101
    Location
    North West Louisiana
    Tractor
    Kubota L5030HSTC

    Default Re: Chnage oil, leave filter unchanged

    Change the filter.

  9. #9
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    49,272
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Chnage oil, leave filter unchanged

    I agree with the majority sentiment.. Why add high dollar$$ oil, and leave an old used filter.. How much is it? 15$? Why gamble your tractor's engine on 15$.

    FWIW.. I do 100hr or better changes on my working tractor.. even though the book says I can go more... Same with air filters..

    Soundguy

  10. #10
    Elite Member
    Join Date
    Nov 2005
    Posts
    3,114
    Location
    Virginia
    Tractor
    1949 farmall, 1961 Fordson Dexta, 1986 Duetz Allis, 2001 Kubota.

    Default Re: Chnage oil, leave filter unchanged

    Change the filter

    mark
    red tractor
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    too many impliments to list

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